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Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle

Geometric and volumetric quantities are usually used to define the reference area for the prediction of aerodynamic coefficients of various aquatic mammals, airships and unmanned vehicle. However, reference area does not have a unique definition, especially for a hybrid buoyant aerial vehicle having...

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Main Authors: Haque, Anwar Ul, Asrar, Waqar, Omar, Ashraf Ali, Sulaeman, Erwin
Format: Article
Language:English
English
Published: World Scientific Publishing Co. Pte Ltd 2017
Subjects:
T Technology (General)
TL Motor vehicles. Aeronautics. Astronautics
Online Access:http://irep.iium.edu.my/62805/1/62805_Defining%20Reference%20Area%20for%20Prediction%20of%20Aerodynamic_article.pdf
http://irep.iium.edu.my/62805/2/62805_Defining%20Reference%20Area%20for%20Prediction%20of%20Aerodynamic_scopus.pdf
http://irep.iium.edu.my/62805/
https://www.worldscientific.com/doi/pdfplus/10.1142/S230138501750011X
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spelling my.iium.irep.62805 http://irep.iium.edu.my/62805/ Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle Haque, Anwar Ul Asrar, Waqar Omar, Ashraf Ali Sulaeman, Erwin T Technology (General) TL Motor vehicles. Aeronautics. Astronautics Geometric and volumetric quantities are usually used to define the reference area for the prediction of aerodynamic coefficients of various aquatic mammals, airships and unmanned vehicle. However, reference area does not have a unique definition, especially for a hybrid buoyant aerial vehicle having hybrid lifting hull which resembles a Steller sea lion. The term square cube root of volume is traditionally used as reference area to nondimensionalize the aerodynamic forces for conventional as well as unconventional airships. Published experimental data are usually available for complete configuration at low speed and in nondimensionalized form. So, a generic model of an aircraft's fuselage was first tested in a wind tunnel as a test case to first determine the lift force and then the influence of different choices of reference area on the lift. A hybrid lifting hull was numerically simulated for the prediction of lift as well as drag coefficients and their ratio. It was found that the volumetric term has undefined correlation with aerodynamic forces in both cases. Changes in aerodynamic coefficients are not prominent when using the wetted area as the reference area. Based on the predicted trends of aerodynamic coefficients and a deep literature survey, the projected planform area is proposed as the best option for reference area of a Steller sea lion as well as for hybrid lifting hull of a hybrid buoyant vehicle. World Scientific Publishing Co. Pte Ltd 2017-10-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/62805/1/62805_Defining%20Reference%20Area%20for%20Prediction%20of%20Aerodynamic_article.pdf application/pdf en http://irep.iium.edu.my/62805/2/62805_Defining%20Reference%20Area%20for%20Prediction%20of%20Aerodynamic_scopus.pdf Haque, Anwar Ul and Asrar, Waqar and Omar, Ashraf Ali and Sulaeman, Erwin (2017) Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle. Unmanned Systems, 5 (4). pp. 237-246. ISSN 2301-3850 https://www.worldscientific.com/doi/pdfplus/10.1142/S230138501750011X 10.1007/s11306-017-1273-0
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
English
topic T Technology (General)
TL Motor vehicles. Aeronautics. Astronautics
spellingShingle T Technology (General)
TL Motor vehicles. Aeronautics. Astronautics
Haque, Anwar Ul
Asrar, Waqar
Omar, Ashraf Ali
Sulaeman, Erwin
Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle
description Geometric and volumetric quantities are usually used to define the reference area for the prediction of aerodynamic coefficients of various aquatic mammals, airships and unmanned vehicle. However, reference area does not have a unique definition, especially for a hybrid buoyant aerial vehicle having hybrid lifting hull which resembles a Steller sea lion. The term square cube root of volume is traditionally used as reference area to nondimensionalize the aerodynamic forces for conventional as well as unconventional airships. Published experimental data are usually available for complete configuration at low speed and in nondimensionalized form. So, a generic model of an aircraft's fuselage was first tested in a wind tunnel as a test case to first determine the lift force and then the influence of different choices of reference area on the lift. A hybrid lifting hull was numerically simulated for the prediction of lift as well as drag coefficients and their ratio. It was found that the volumetric term has undefined correlation with aerodynamic forces in both cases. Changes in aerodynamic coefficients are not prominent when using the wetted area as the reference area. Based on the predicted trends of aerodynamic coefficients and a deep literature survey, the projected planform area is proposed as the best option for reference area of a Steller sea lion as well as for hybrid lifting hull of a hybrid buoyant vehicle.
format Article
author Haque, Anwar Ul
Asrar, Waqar
Omar, Ashraf Ali
Sulaeman, Erwin
author_facet Haque, Anwar Ul
Asrar, Waqar
Omar, Ashraf Ali
Sulaeman, Erwin
author_sort Haque, Anwar Ul
title Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle
title_short Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle
title_full Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle
title_fullStr Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle
title_full_unstemmed Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle
title_sort defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle
publisher World Scientific Publishing Co. Pte Ltd
publishDate 2017
url http://irep.iium.edu.my/62805/1/62805_Defining%20Reference%20Area%20for%20Prediction%20of%20Aerodynamic_article.pdf
http://irep.iium.edu.my/62805/2/62805_Defining%20Reference%20Area%20for%20Prediction%20of%20Aerodynamic_scopus.pdf
http://irep.iium.edu.my/62805/
https://www.worldscientific.com/doi/pdfplus/10.1142/S230138501750011X
_version_ 1643617093511282688
score 13.211869

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